Elevate your electrical installations with the Sigma Engineered Solutions ProConnex 49108 Rigid Conduit Locknut 3-Inch, a reliable solution for securing threaded conduit or connectors to your box or enclosure. This single-pack locknut is compatible with 3-inch Rigid conduit, IMC, and other threaded connectors, offering versatility for various electrical setups. The locknuts are easy to install, allowing for a quick and hassle-free setup process. Crafted from zinc-plated steel, these locknuts provide durability and strength, ensuring long-lasting performance in demanding environments.